public class Concat extends SystemFunctionCall implements Callable
operationargumentEFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, INHERITED_CONTEXT, INSPECTION_CONTEXT, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, NAVIGATION_CONTEXT, NODE_VALUE_CONTEXT, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, W3C_CONSUMING, W3C_FREE_RANGING, W3C_GROUP_CONSUMING, W3C_MOTIONLESS, WATCH_METHOD| Constructor and Description |
|---|
Concat() |
| Modifier and Type | Method and Description |
|---|---|
Sequence |
call(XPathContext context,
Sequence[] arguments)
Call the Callable.
|
CharSequence |
evaluateAsString(XPathContext c)
Evaluate the function in a string context
|
StringValue |
evaluateItem(XPathContext c)
Evaluate in a general context
|
ExpressionCompiler |
getExpressionCompiler()
Return the compiler of the Concat expression
|
FunctionItemType |
getFunctionItemType(TypeHierarchy th)
Get the item type of the function item
|
protected SequenceType |
getRequiredType(int arg)
Get the required type of the nth argument
|
Iterator<SubExpressionInfo> |
iterateSubExpressionInfo()
Get the immediate sub-expressions of this expression, with information about the relationship
of each expression to its parent expression.
|
void |
process(XPathContext context)
Process the instruction in push mode.
|
addContextDocumentArgument, addDocToPathMap, bindStaticContext, checkArguments, computeCardinality, computeSpecialProperties, copy, equalOrNull, equals, getContextNode, getConvertingCallable, getDefaultArgumentNode, getDetails, getErrorCodeForTypeErrors, getImplementationMethod, getItemType, getOperation, makeSystemFunction, optimize, setDetails, useContextItemAsDefaultaddExternalFunctionCallToPathMap, checkArgumentCount, explain, getArguments, getDisplayName, getExpressionName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, preEvaluate, promote, replaceSubExpression, setArguments, setFunctionName, simplify, simplifyArguments, toString, typeCheckaddToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getEvaluationMethod, getExecutable, getHostLanguage, getIntegerBounds, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getStreamability, getStreamingAdjunct, getSystemId, getSystemId, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterate, iterateEvents, markTailFunctionCalls, resetLocalStaticProperties, setContainer, setEvaluationMethod, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, toPattern, toStreamingPattern, typeErrorpublic FunctionItemType getFunctionItemType(TypeHierarchy th)
getFunctionItemType in class SystemFunctionCallth - the type hierarchy cachepublic Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
Callablecall in interface Callablecontext - the dynamic evaluation contextarguments - the values of the arguments, supplied as Sequences.
Generally it is advisable, if calling iterate() to process a supplied sequence, to
call it only once; if the value is required more than once, it should first be converted
to a GroundedValue by calling the utility methd
SequenceTool.toGroundedValue().
If the expected value is a single item, the item should be obtained by calling
Sequence.head(): it cannot be assumed that the item will be passed as an instance of
Item or AtomicValue.
It is the caller's responsibility to perform any type conversions required to convert arguments to the type expected by the callee. An exception is where this Callable is explicitly an argument-converting wrapper around the original Callable.
XPathException - if a dynamic error occurs during the evaluation of the expressionprotected SequenceType getRequiredType(int arg)
getRequiredType in class SystemFunctionCallarg - the number of the argument whose type is requested, zero-basedpublic Iterator<SubExpressionInfo> iterateSubExpressionInfo()
iterateSubExpressionInfo in class SystemFunctionCallpublic CharSequence evaluateAsString(XPathContext c) throws XPathException
evaluateAsString in class Expressionc - The context in which the expression is to be evaluatedXPathException - if any dynamic error occurs evaluating the
expressionpublic StringValue evaluateItem(XPathContext c) throws XPathException
evaluateItem in class Expressionc - The context in which the expression is to be evaluatedXPathException - if any dynamic error occurs evaluating the
expressionpublic void process(XPathContext context) throws XPathException
process in class Expressioncontext - The dynamic context, giving access to the current node,
the current variables, etc.XPathException - if a dynamic error occurspublic ExpressionCompiler getExpressionCompiler()
getExpressionCompiler in class ExpressionCopyright (c) 2004-2013 Saxonica Limited. All rights reserved.